
Benign Environment
AC-DC Converters <40 Watt
LW Series
Edition 3/4.99
1/9
MELCHER
The Power Partners.
TOKO 15/30 Watt AC-DC Converters
LW Series
Input to output isolation
Triple output
Universal AC input
Flex power topology
Noise level meets EN 55011/EN 55022, class B
Low profile: 25.4 mm
Safety according to IEC/EN 60950
Type Survey and Key Data
Table 1: Type survey
Output 1 1
Output 2 1
Output 3 1
Output power
Input voltage
Efficiency 2
Type
Uo nom
Iomax
Uo nom
Io max
Uo mom
Io max
TA = 40°C
Ui min…Ui max
h [%]
designation
[V DC]
[A]
[V DC]
[A]
[V DC]
[A]
Po max [W]
5
3.0
12
0.5
–12
0.5
17.5
85…264 V AC
65
LW 15-01
5
3.0
15
0.5
–15
0.5
17.5
47…63 Hz
65
LW 15-11
5
5.0
12
1.2
–12
0.5
31
(110…350 V DC)
65
LW 30-01
5
5.0
15
1.2
–15
0.5
31
65
LW 30-11
1 The cumulated power of all three outputs may not exceed the total rated power
2 Efficiency at Ui rated and Io nom.
Summary
Innovative design and attention to detail make the LW se-
ries the choice of many design engineers. These compact
power supplies feature a total volume of nearly three times
less than conventional switchers in the same power range.
MOSFET switching technology and component derating
further assure high reliability. The LW's flex power output
design easily accommodates changing design needs and
power requirements. Universal AC input is standard on all
15 and 30 W rated triple output models. Safety approvals
according to UL 1950, CSA 950 (EB 1420C) and IEC/EN
60950.
Key applications
Equipment for office automation, factory automation, pe-
ripheral, communication, security, display, test and meas-
urement, inspection and medical.
128
5.0"
70
2.8"
25.4
1.0"
175
6.9"
70
2.8"
25.4
1.0"
LW 15
LW 30
Table of Contents
Page
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 1
Type Key .......................................................................... 2
Functional Description ...................................................... 2
Electrical Input Data ......................................................... 3
Electrical Output Data ...................................................... 3
Page
Electromagnetic Compatibility (EMC) .............................. 5
Immunity to Environmental Conditions ............................. 6
Mechanical Data .............................................................. 7
Safety and Installation Instructions .................................. 8
Accessories ...................................................................... 9